Unnavigability
[法] 不可航行, 不适航性, 不适航状态
🗣️ 情景例句
Not at all. Hope you come again.
不客气。希望你能再来。
A man without a friend is only half a man.
无友的人只能算半个人。
It's six o'clock.
六点钟了。